MCQ
What is the packet of energy called
- AElectron
- ✓Photon
- CPositron
- DProton
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$(I)$ $CH_3COO^{\Theta}$ $(II)$ $CH_3O^{\Theta}$
$(III)$ $CH_3CH_2^{\Theta}$ $(IV)$ $CH_3SO_3^{\Theta}$
$Na _{2} O , As _{2} O _{3}, N _{2} O , NO$ and $Cl _{2} O _{7}$
Number of amphoteric oxides is ..... .
